You can explore the API by enabling Swagger within your Mango installation. To enable Swagger edit your env.properties file like this:
#For rest API Documentation at #Mango 3.4.5 and before: /swagger/index.html #Mango 3.5 and after: /swagger-ui.html swagger.enabled=true
Restart Mango and login as admin user and then go to the URL specified above.
Please be aware you will need a tab open while logged into an admin account for swagger to work in secondary tab.